What is a JPG_LARGE file? A JPG_LARGE file is an image created when a Google Chrome user downloads a large-sized image from Twitter. It is saved in the standard JPEG format, but with a custom file extension. To open a JPG_LARGE file, change the extension to ".jpg," then open it as you would any .JPG file.

More Information JPG_LARGE file open in Google Chrome When you open a Twitter-hosted image in a new Chrome tab, the URL may look something like this: https:/​/​pbs.twimg.com/​media/​FIQbAtSX0AQ4Z7v.jpg:large If you download the image from the URL above, Chrome may save it with a JPG_LARGE file extension. Despite using a different extension, JPG_LARGE files are normal JPEG files. Twitter appends the large attribute to the image URL, causing it to end with .jpg:large . When downloading the image, Chrome changes the colon to an underscore since filenames cannot contain colons. The result is a .jpg_large file. Twitter may also create other image sizes with the corresponding extensions: Original ( .JPG_ORIG ) Thumbnail ( .JPG_THUMB ) Small ( .JPG_SMALL ) Medium ( .JPG_MEDIUM ) NOTE: Twitter now uses the following URL structure to prevent the creation of JPG_LARGE files: https:/​/​pbs.twimg.com/​media/​FIQbAtSX0AQ4Z7v?format=jpg&name=large